Node board card and server

Abstract

The invention discloses a node board card. The node board card comprises a Flash chip; a one-to-two switcher, wherein the first end circuit of the one-to-two switcher is connected with the Flash chip,and the second end circuit of the one-to-two switcher is connected with the BMC chip and the data receiving interface; a one-to-four switcher, wherein one end circuit of the one-to-four switcher is connected with one end of the one-to-two switcher, four end circuits of the one-to-four switcher are respectively connected with four data sending interfaces, and the BMC chip is configured to judge whether the BMC chip is a main node board card or not based on a two-end circuit of the one-to-two switcher; responding to the own main node board card, the update message is received and it is judged to update the node board card based on the update message; and the update information is sent to the update node board card and the update node board card is updated according to the update information. The invention further discloses a server which comprises a plurality of node board cards. By utilizing the switcher of the node board card, the single node board card can update long-distance Flashinformation of the multi-node board card, a bus protocol with a higher rate can be used, and the burning speed is increased.

Description

technical field [0001] The invention relates to the technical field of servers, in particular to a node board and a server. Background technique [0002] With the development of information technology, the application of servers is becoming more and more extensive. In industries such as government, finance, and energy, there is an increasing demand for large-scale core databases, virtualization integration, memory computing, and high-performance computing, and the advantages of 8-socket servers are widely used. [0003] The Serial Peripheral Interface (SPI) bus is an unbalanced or single-ended serial interface designed for short-distance communication between integrated circuits. Due to the signal delay during signal transmission, the transmission distance of low-speed signals is limited. When the signal trace length does not meet the design standards, the actual signal will cause distortion, which will affect signal judgment and server functions. [0004] In a multi-chann...

AI Technical Summary

Problems solved by technology

Due to the signal delay during signal transmission, the transmission distance of low-speed signals is limited. When the signal line length does not meet the design standards, the actual signal will cause distortion, which will affect the signal judgment and server functions.

[0004] In a multi-channel server, in order to enable the master node to update the Flash information of other computing nodes, it is necessary to realize the interconnection between computing nodes. Due to too many nodes, the wiring will be too long. If a protocol with a low transmission rate is used The bus will definitely cause the transmission time to be too long due to the low speed. For example, if the UART bus is used to update the Flash information, due to the large amount of data and the slow transmission rate, the burning time will be very long

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